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An additional control circuit and control method for a resistive touch screen based on a digital bridge

A technology of resistive touch screen and digital bridge, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of manufacturers refusing to provide resistive touch screen communication control interface protocol, not providing communication control interface protocol or closing Problems such as communication control function, inability to access automatic control of assembly line, etc.

Active Publication Date: 2021-01-01
国麒光电科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some imported instruments or equipment do not provide various communication control interface protocols or close the communication control function due to the restriction of user functions.
For example, the SR800 black body of Israel CI company, the manufacturer refuses to provide the communication control interface protocol of the resistive touch screen, and can only work in the form of manual operation of the touch screen, and cannot be connected to the assembly line to realize automatic control

Method used

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  • An additional control circuit and control method for a resistive touch screen based on a digital bridge
  • An additional control circuit and control method for a resistive touch screen based on a digital bridge
  • An additional control circuit and control method for a resistive touch screen based on a digital bridge

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Embodiment Construction

[0013] Such as figure 1 As shown, an additional control circuit for a resistive touch screen based on a digital bridge in the present invention includes a buzzer detection circuit 1, a processor 2, an upper communication interface circuit 3, a lower communication interface circuit 4, and a digital bridge 5. Relay 6; the digital bridge 5 is connected in parallel with the resistive touch screen 8 of the controlled instrument or equipment, and is used to simulate the relative resistance value of the pressed position of the resistive touch screen 8 of the controlled instrument or equipment; the relay 6 is in the position of the digital bridge 5 Between the controlled resistive touch screen 8, it is used to control the output of the 4 bridge arms of the digital bridge 5; the buzzer detection circuit 1 is connected in parallel with the buzzer 7 of the controlled instrument or equipment to monitor the controlled instrument Or the signal of the buzzer 7 of the device changes; the uppe...

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PUM

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Abstract

The invention discloses a digital electric bridge-based resistive touch screen additional control circuit and method. The circuit comprises a buzzer detection circuit, a processor, an upper communication interface circuit, a lower communication interface circuit, a digital electric bridge and a relay. According to the circuit and the method, instruments or apparatuses which do not have communication control interfaces or cannot obtain control interface communication protocols and use resistive touch screens as man-machine interfaces are transformed by adoption of an additional form. Through aparallel manner, four-core connection wires of touch screen interfaces and two-core connection wires of buzzers in the instruments or apparatuses are led out, operations carried out on touch screens by human bodies are simulated through the digital electric bridge and the relay, and the working states of the instruments or apparatuses are detected according to the buzzer detection circuit, so thatthe instruments or apparatuses can have an unattended function without changing the original functions.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to an additional control circuit and control method for a resistive touch screen based on a digital bridge. Background technique [0002] Resistive touch screens are widely used in man-machine interfaces of various industrial control equipment and instruments due to their characteristics of adapting to harsh working environments, being able to touch with any object, and having good stability. Most instruments and equipment have GPIB, LAN, serial communication and other interfaces, which can realize information exchange and remote control functions. However, some imported instruments or equipment do not provide various communication control interface protocols or turn off communication control functions due to restricted user functions. For example, the SR800 black body of Israel CI company, the manufacturer refuses to provide the communication control interface protocol of the resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/045
Inventor 李航宇周强
Owner 国麒光电科技(天津)有限公司
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